オキゴンドウ

Meanings

false killer whale

usually written using kana alone

A species of dolphin (Pseudorca crassidens) resembling the killer whale. The name is a biological term, but it may appear in nature documentaries or marine life contexts.

オキゴンドウは、シャチに似にた姿すがたをしているが、別べつの種しゅ類るいのイルカだ。
The false killer whale looks similar to the killer whale, but it is a different species of dolphin.